A man thought to be in his 60s exposed himself to a dog walker in Chedgrave.
It happened between 2.45pm and 3.15pm on Wednesday, when the woman, in her 50s, was walking along Rectory Lane.
Norfolk Police are asking for anyone who saw any suspicious activity or has knowledge of the incident to call PC Rob Whiting at Wymondham police station on 101 or call Crimestoppers anonymously on 0800 555111.
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